介绍了作者新研制的用于掺渣油催化裂化研究的同轴式催化裂化实验装置。由于采用了专门的进料雾化和催化剂循环等技术，该装置能适应渣油进料，可进行单参数调节，适应范围广，模拟工业装置操作状况效果良好，操作稳定，控制灵活，结果准确、可靠，重复性好。可用于催化裂化各方面的研究。 This paper introduces a new type of coaxial catalytic cracking unit used in the study of catalytic cracking of residue oil. Due to the special technology of feed atomization and catalyst circulation, the device can adapt residue oil feed, can be adjusted by a single parameter, has a wide range of adaptability, has good operation effect in simulated industrial plant, has stable operation, flexible control and accurate result Reliable, repeatable. Can be used for all aspects of catalytic cracking research.